Improvement in fttmfs



tuited States' M. S. ORTON,OF GALESBURG,

ILLINOIS, ASSIGNOR TO ZIMRI POND, OF SAME PLACE.

Letters Patent No. 101,304, dated .Zi/[arch 29, 1870.

lIII!PRO'VIDMEBVI.' IN PUMPS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom 'it may concern..-

Be it known that I, M. S. ORTON, of Galesburg, in the county of Knox andState of Illinois, have invented certain new and useful Improvements inPumps; and I do hereby declare that the following is a full, clear, andexact description of the construction and operation of the same,reference being had to the accompanying drawings making a portion ofthis specitication, in which- Figure 1 is a vertical central sectionalview.

The nature of this invention relates to improvements in that class ofpumps having a hollow pistonrod; and

The invention consists in constructing the piston with an air-chamber inits lower surface,`and extending the hollow pistou-rod down through thesaid airchamber to near a level with the base of the piston.

'.lo enable others to construct and use my invention, I will proceed todescribe it with reference to the drawings.

Letter A represents the framing or curb of the well or cistern, to whichthe device is applied.

Letter B represents a cylinder, open at the top, and with a hole, S, inthe bottom.

This cylinder is supported at' a short distance from the bottom of thewell or cistern on the braces D D.

Y represents a valve over the hole S, and opening upward.

G represents the cylindrical piston, hemisphen'cal over the top, hollowlon the under side, and tting neatly in the cylinder B.

L represents a hollow piston-rod, curved over at the top, as shown, andforming the discharge-pipe.

b1 represents a lever, pivoted to the curb A by the hook J, and to thepipe L by the pin, shown by dotted lines e.

The manner of operation is deemed evident from the drawings.

When the piston C is liftedby means of the lever H, the valve Y will beraised, and the water drawn into the cylinder B, and when the piston isforced downward, the valve Y will be closed, and the water in thecylinderv B forced upward and discharged from the pipe L, the air at thesame time surrounding the lower end of the pipe L, in the under side ofthe piston, and aiding, by its elasticity, in securing easy action andregular working of the pump.

I do not claim as my invention the tubular pistonrod, nor any method bywhich other pumps having tubular pistons are operated by valves on theirlower' end. My invention obviates the necessity for valves on thepiston.

What I claim as my invention is- 'lhe air-chamber or piston C, attachedto thelower end of, and in combination with, the hollow piston-rod ortube L, cylinder B, lever H, and valve Y, the whole constructed andoperated substantially as and for the purpose specified.

Signed at Galesburg, in the county of Knox and State of Illinois, this27th day of March, 1869.

M. S. ORTON.

Witnesses P. R. RICHARDS, B. R. MoRsn.

